kernel: uaf bug in mctp-serial.c
Published Feb 18, 2022
7.8
HIGHCVSS 3.1
EPSS 0.36%
Description
A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.
Affected products
- Vendor n/a Product Kernel Defaultn/a
- Version 5.17-rc5StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Kernel | n/a |
|
Configuration 1
- 5.17
- 5.17
- 5.17
- 5.17
- 5.17
Configuration 2
- n/a
Configuration 3
- n/a
Configuration 4
- n/a
Configuration 5
- n/a
Configuration 6
- n/a
Configuration 7
- n/a
Configuration 8
- n/a
Configuration 9
- n/a
No data.
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
There was no shipped kernel version that was seen affected by this problem.
References (6)
- https://access.redhat.com/security/cve/CVE-2022-0646 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2055206 Issue Tracking
- https://lore.kernel.org/all/20220211011552.1861886-1-jk%40codeconstruct.com.au x_refsource_MISCMailing ListPatch
- https://nvd.nist.gov/vuln/detail/CVE-2022-0646
- https://security.netapp.com/advisory/ntap-20220318-0006/ x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2022-0646
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2022-0646 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2055206 | Issue Tracking | |
| https://lore.kernel.org/all/20220211011552.1861886-1-jk%40codeconstruct.com.au | x_refsource_MISCMailing ListPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2022-0646 | ||
| https://security.netapp.com/advisory/ntap-20220318-0006/ | x_refsource_CONFIRMThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2022-0646 |
Change history (0)
No recorded changes yet.